Peoples Physics Book Version-2

http://www.ck12.org Chapter 30. Equations and Fundamental Constants Version 2

Iring about cm=MR^2

Idisk about cm=

1

2

MR^2

Irod about end= ( 1 / 3 )ML^2

Isolid sphere about cm= ( 2 / 5 )MR^2

Astronomy

P∗= 4 × 1026 W

M∗= 1. 99 × 1030 kg

R∗= 6. 96 × 108 m

1 light-year(ly) = 9. 45 × 1015 m

MEarth= 5. 97 × 1024 kg

REarth= 6. 38 × 106 m

Earth−Sun distance= 1. 496 × 1011 m

MMoon= 7. 35 × 1022 kg

RMoon= 1. 74 × 106 m

Earth−Moon distance= 3. 84 × 108 m